Triamcinolone acetonide injectable suspension, USP. It is a synthetic glucocorticoid corticosteroid with marked anti-inflammatory action, in a sterile aqueous suspension suitable for intralesional and intra-articular injection. THIS FORMULATION IS SUITABLE FOR INTRA-ARTICULAR AND INTRALESIONAL USE ONLY. Kenalog 10 mg/ml is available in a 5 ml vial. Kenalog 40 mg/ml is available in 1 ml, 5 ml and 10 ml flip-top glass vials.